The 55th Pennsylvania Infantry was a Union army regiment active in the American Civil War. It was organized at Harrisburg, Pennsylvania in 1861.[1]
During its service it lost 479 men: seven officers and 201 enlisted men killed and mortally wounded, and it lost three officers and 268 enlisted men by disease.[1]
It was in South Carolina in 1862, including at the Battle of Simmon's Bluff on June 21. For a time its commander occupied Frogmore, a plantation house on Edisto Island, South Carolina.
It was mustered out August 30. 1865, at Petersburg, Virginia.[1]